Pipe reamer



1958 A. H. ROWEQLL 2,858,833

1 PIPE BEAM-ER Filed Nov. 17. 1955 98 r. I l Fig.5 E l l l I l I E "In!28 i r? I 1 i 1 m Fig.2

Alexander H. Rowe/l IN VEN TOR.

Y nan #200; 3M

United States Patent- This invention relates generally to pipe reamersand is more particularly concerned with a mechanical pipe reaming devicewhich operates and functions in substantially the same manner assharpener.

A specific object of invention is to provide a support base including abearing sleeve surrounding by a cona mechanical pencil centricallydisposed support housing, the bearing sleeve,

having journaled therein a shaft member having one end secured to acrank member, the other end of which removably supporting a pipe reamermember in coaxial alignment with the shaft, and wherein thesupporthousing removably supports a receptacle member having a materialreceiving portion underlying the reamer-member and including an upperopen portion for receiving a pipe bowl therein.

A further object of invention in conformance with that set forth aboveis to provide a mechanical pipe reamer adapted to accommodate aplurality of different reamer members.

These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout, and in which:

Figure 1 is a front elevational view of the novel mechanical pipereamer;

Figure 2 is a sectional view taken substantially on line 2-2 of Figure 1with portions shown in elevation;

Figure 3 is a perspective view of a reamer member usable in the device;

Figure 4 is a perspective view of another type reamer member usable inthe device;

Figure 5 is a sectional view taken substantially on line 5--5 of Figure4; and

Figure 6 is a fragmentary sectional view taken substantially on line 66of Figure 1, showing details of the mounting of the receptable member ofthe device.

The novel mechanical pipe reamer is indicated generally at 10 andincludes a support assembly 12, a removable receptacle assembly 14, anda removable reamer blade assembly 16.

The support assembly 12 comprises a base member 18 containing suitableapertures for receiving fastening members such as the screws 20 forsecuring the base member on a generally horizontal support surface 22.The base member 18 has extending upwardly therefrom a vertical supportportion 24 supporting a transverse tubular sleeve 26, said supportelement 24 incorporating a support housing 28 concentrically disposedabout'the tubular sleeve 26, the housing incorporating an annularhousing 30 therearound which has a forward edge 32 terminatingrearwardly of the forward edge 34 of the housing 28.

The tubular sleeve 26 has rotatably supported therein I 2,858,833Patented Nov. 4, 1958 2 diameter threaded portion as indicated at 42 andhaving disposed thereon a suitably apertured crank arm 44 by means of aretaining nut 46, said crank arm having secured on its outer end 48 alaterally extending handle portion 50.

As seen in Figure 6, the housing member 28 includes a pair ofdiametrically opposed laterally extending tab elements 52 which areforwardly disposed of the for- .ward edge 32 of the annular housingportion 30 for accommodating therein a portion of the receptacle memberas will subsequently become apparent. As seen in Figure 1, the tabelements 52 are disposed angularly rela tive to the vertical axis of thesupport element 24 for a purpose to become subsequently apparent.

The receptacle member 14 includes a pair of mutually parallel rear andfront plate portions 54 and 56, respectively, each of which has flangeportions 58 .and 60, respectively, directed toward each otherforsupporting a substantially elliptical center portion 62, the portions54 and 56 together with 62 defining a material receiving portion 64. Therear plate 54 incorporates an upper apertured portion 66 of the samediameter as the housing member 28, said aperture portion 66 beingdefined by an inwardly turned annular flange 68 extending around thehousing member 28 when the receptacle member is mounted thereon. Theannular flange 68 and the back plate 54 have extending therethroughdiametrically opposed notched out portions 70, see Figure l, thenotchedout portion 70 and the annular flange 68 extending along the arc 'of theflange 68 the same distance as the angular displacement of the tabelements 52 are displaced relative to the vertical axis providing anabutment portion 72 engageable with said tabs 52. Thus the receptaclemember 14 is moved longitudinally upon the housing member 28 with thenotched out portion 70 passing over the tabs 52 thereafter the housingmember 14 is rotated counterclockwise as indicated by the arrow inFigure 1 with the abutment portion 72 engaging the tab portions 52resulting in the receptacle member 14 having its .longitudinal axis inalignment with the vertical axis of the support element 24.

The support element 24 includes a pair of forwardly extending rib or webportions 74 which are engageable with the outer surfaces of the platemember 54 for supply ing additional support to the receptacle element14.

The center portion 62 of the receptacle member has an upper cut outportion 76 which slopes downwardly from the rear to the front of thereceptacle member, said opening 76 permitting the insertion of a pipe Ptherethrough. The forward plate 56 of the receptacle member includes anarcuate cut out portion 78 in substantial alignment with the housingmember 28 of the support, this cut out portion permitting the bowl ofthe pipe to be moved longitudinally relative to the axis of rotation ofthe shaft 36.

The shaft 36 terminates beyond the collar portion 38 thereof in areduced diameter threaded end portion 80 which removably receivesthereon an internally tapped hub portion 82 of the reamer blade assembly16. The hub has integrally secured thereon in longitudinal alignmentwith the axis of rotation of the shaft 36 a reamer blade portion 84which is constituted by a plurality of relatively stiff wires defining abrush which has a rounded end portion 88, said reamer 'bladeaccommodating itself to the bowl of the pipe being reamed out.

As seen in Figure 4 another embodiment of reamer blade is indicatedgenerally at 90, said blade including a hub portion 92 which isinternally tapped as is the hub 82 of the previously mentioned reamerelement, said hub 92 having integrally secured thereon a laterallyextending and diametrically opposed blade element 94 which is tapered atits forward edge 96 accommodating it to the shape of the bowl beingreamed out, the blade being substantially flat as seen in Figure 5.Further observing Figure 5, it will be noted that the opposite edges ofthe blade 94 are sharpened on opposite side edges 96 and 98 whereby whenthe'blade is rotated in the direction "indi- 'cated by the arrow ofFigure 5 each of the blade edges will be effective to ream out the pipebowl.

1 As seen in Figure 3 a further reamer blade is indicated generally at100 said blade including a hub portion 102 which is centrally aperturedand threaded at 104 for accommodatingthereon the threaded end '80 of theshaft '36, said hub having extending therefrom a pair of relarear, etc.are utilized herein to have only a relative connotation to aid indescribing the device and are not intended to require any particularorientation with respect to any external elements.

The foregoing is considered as illustrative only of the principles ofthe invention.

to the exact construction and operation shown and described, andaccordingly all suitable modifications and the invention as claimed.What is claimed as new is as follows:

A pipe reamer comprising a base, a vertical rear support on said basehaving an upper end provided withan Further, since numerous vmodifications and changes will readily occur to those skilled in theart, it is not desired to limit the invention equivalents may beresorted to, falling Within the scope of I .annular horizontal housingprojecting forwardly therefrom and having a front edge, a surroundinghousing on said horizontal housing flaring therefrom toward said frontedge and having a front edge terminating in the rear of the front edgeof said annular housing, an open top receptacle having a rear verticalplate, means on said plate adapted to suspend said receptacle from saidannular housing comprising an annular flange on said rear plate fittingon said annular housing and on the front edge portion of -thesurrounding housing and defining an opening into which the front edge ofthe annular housing projects, a bearing sleeve on said support extendinginto said annular housing in concentric spaced relation thereto, a shaftjournaled in said sleeve and provided with a crank on one end having acircumferential end thrust flange on its other end engaging said sleeveand provided with a forwardly extending reduced portion, and a pipereamer member extending horizontally forwardly from said threadedportioninto said receptacle and including a tapped hub portion threaded ontosaid reduced portion.

References Cited in the file of this patent UNITED STATES PATENTS

